Heroes 3 damage calculator

In battle, pointing the active stack at an enemy shows the damage of that attack in the status line, “Attack … (… damage)” or “Shoot … (… damage)”, counting only the skills and spells already in play; the losses, the strike back and a second attack show only once it is made.

Each stack's Attack Skill and Defense Skill, shown when you right-click it in battle, meet first: the higher Attack Skill raises the damage and the higher Defense Skill lowers it. The attacking hero's Offense or Archery, the defending hero's Armorer, and Shield, Air Shield and Stone Skin on the defender change it further. Set both stacks to see each strike, the losses and the survivors at the lowest and the highest rolls.